Plex Media Server command line installation for new version

Server Version#:1.29.0.6219

There is a new Plex Server installer after 1.29.0 x64 which is based on inno setup. What commands are needed for a completely silent installation? I use /verysilent /suppressmsgboxes /norestart but at the end of the installation Plex starts. What other optional command does not start Plex after installation?
Support documentation has not yet been updated.

Hi,

I would like to know that, too. I install windows and programs automatically and when plex starts (that’s ok) it opens the browser and that’s annoying.
It should always start with windows but not directly after installation. is there a command for this?